Updated kernel to 3.8.4 (latest stable; dated 2013-03-20) and receive the same errors as on previous versions (every 5 seconds):
[ 11.482307] xhci_queue_intr_tx: 71 callbacks suppressed [ 16.594634] xhci_queue_intr_tx: 76 callbacks suppressed [ 21.707011] xhci_queue_intr_tx: 72 callbacks suppressed [ 26.819400] xhci_queue_intr_tx: 72 callbacks suppressed [ 31.931862] xhci_queue_intr_tx: 72 callbacks suppressed [ 37.044236] xhci_queue_intr_tx: 71 callbacks suppressed [ 42.156609] xhci_queue_intr_tx: 72 callbacks suppressed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058030 Title: Log full of xhci_hcd WARN To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058030/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs